5.4-6.9 inch Mobile Phone Universal Diving Photography Handle 20M Bluetooth Waterproof Case 1. Charging method: Pogo Pin 2. Battery capacity: 80mAh 3.7V 3. Charging time: about 2h 4. Waterproof rating: IP68, underwater up to 20m 5. Applicable mobile phone size: 5.4-6.9 inches 6. Material: ABS, PC, aluminum alloy 7. Size: about 20.37 x 10.92 x 5.2cm 8. Weight: about 397g 9. Note: waterproof case only, does not include other accessories Features: 1. Compatible with single and multiple cameras, unobstructed design, 97% light transmission rate, 4.4-inch clear viewing window 2. One-button compensation for underwater red light attenuation, automatically identifies classic water areas 3. Bluetooth direct connection, stable control 4. Five mechanical axis buttons with a stepped layout that fits finger muscle memory 5. One-piece construction, DSLR-style grip, easy to assemble and disassemble 6. Unidirectional air vent design, simple operation, effective anti-fogging